N20 3V 6V 9V 12V Electric Motor DC with Plastic for Electronic Locks Medical Equipment Door Lock Shenzhen OT Technology Co., Ltd. Base Info Description Pre：3V High Quality Copper Counterweight N20 3V DC Motor for Robot Door Lock Home Appliances Next：N20 Plastic Gearbox Micro Gear Motor 6V 50rpm 70rpm for Smart Electric Door Lock
